gnome-classic-fallback and NVIDIA multi X session problem; seven X session on ONE display!

Xavier_McHot's picture
Image icon Schermata del 2015-06-17 22:07:52b.png109.88 KB


I tried with nvidia-settigs and a separated monitor (apart from laptop) to enable the "Separate X Screen". I had no problems with the TwinView, before. When I first enabled the Separate X Screen, one monitor went blank, and the other had two X session in the gnome panel. This could be a bug, but when I try to revert to TwinView mode (or also, with only one monitor) the second X session doesn't disappear! After some attempts I will find myself with seven X session on the same monitor!
I tried to purge and reinstall gnome-session-fallback, I tried to revert the xorg.conf file with the nvidia-settings and nvidia-xconfig ... with no luck at all.

You can find a screenshot at the end of the post.

This is my xorg.conf file:

# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 304.88 (pbuilder@cake) Wed Apr 3 08:58:25 UTC 2013

Section "ServerLayout"
Identifier "Layout0"
Screen 0 "Screen0" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
Option "Xinerama" "0"

Section "Files"

Section "InputDevice"
# generated from default
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"

Section "InputDevice"
# generated from default
Identifier "Keyboard0"
Driver "kbd"

Section "Monitor"
# HorizSync source: edid, VertRefresh source: edid
Identifier "Monitor0"
VendorName "Unknown"
ModelName "AU Optronics Corporation"
HorizSync 36.0 - 54.0
VertRefresh 39.0 - 60.0
Option "DPMS"

Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "NVS 3100M"

Section "Screen"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "Stereo" "0"
Option "nvidiaXineramaInfoOrder" "DFP-3"
Option "metamodes" "DFP: nvidia-auto-select +0+0, CRT: nvidia-auto-select +1440+0"
SubSection "Display"
Depth 24

OK, I solved by reset GNOME3

Xavier_McHot's picture

OK, I solved by reset GNOME3 configurations of current user to default by

rm -rf .gnome .gnome2 .gconf .gconfd .metacity .cache .dbus .dmrc .mission-control .thumbnails ~/.config/dconf/user ~.compiz*

and log-in again.